REF43GSZ-REEL7

Overview

The REF43GSZ-REEL7 is a low power precision voltage reference providing a stable 2.5 V output, housed in an 8-SOIC package. It features an initial accuracy of ±0.1% and a temperature coefficient of 25 ppm/°C. The device operates within an input voltage range of 4.5 V to 40 V and draws a supply current of 450 µA. It supports a maximum output current of 20 mA and exhibits a noise level of 10 µVrms between 10 Hz and 10 Hz. The component functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Provides a stable 2.5 V output independent of supply voltage, load conditions, or ambient temperature variations.
• Utilizes zener-zap trimming for both output voltage and temperature coefficient to ensure tight tolerances and low thermal drift.
• Incorporates a unique curvature correction circuit to reduce the thermal curvature characteristic of previous bandgap references.

Applications

• Reference level for 8-bit data acquisition systems
• Reference level for 10-bit data acquisition systems
• Reference level for 12-bit data acquisition systems

Procurement Notes

Verify that the specific part number matches the required tolerance and packaging format. Confirm RoHS compliance status as indicated by the Z suffix. Ensure ESD precautions are observed during handling due to electrostatic sensitivity. Cross-reference datasheet revision D specifications against manufacturing lot requirements.

Selection Notes

Select this component when a fixed 2.5 V reference with ±0.1% accuracy is required. Consider the 25 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 450 µA supply current against system power constraints. Verify compatibility with 8-SOIC surface mount assembly processes.

Part Context

This component belongs to the REF43 series of low power precision voltage references manufactured by Analog Devices Inc. The GSZ designation indicates an 8-pin SOIC plastic package with lead-free construction. It serves as a stable voltage source for analog circuits requiring precise reference levels.

Replacement Considerations

REF43GSZ-REEL

FAQ

How does the REF43 achieve low thermal drift?

It uses zener-zap trimming of both the output voltage and its temperature coefficient, along with a unique curvature correction circuit to reduce thermal curvature.

What is the specified noise performance of the REF43GSZ-REEL7?

The noise specification is 10 µVrms measured over a frequency range of 10 Hz to 10 Hz.